1358350561 has 2 divisors, whose sum is σ = 1358350562. Its totient is φ = 1358350560.

The previous prime is 1358350559. The next prime is 1358350577. The reversal of 1358350561 is 1650538531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1358291025 + 59536 = 36855^2 + 244^2 .

It is a cyclic number.

It is not a de Polignac number, because 1358350561 - 2¹ = 1358350559 is a prime.

Together with 1358350559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1358350561.

It is not a weakly prime, because it can be changed into another prime (1358350531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 679175280 + 679175281.

It is an arithmetic number, because the mean of its divisors is an integer number (679175281).

Almost surely, 2^1358350561 is an apocalyptic number.

It is an amenable number.

1358350561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1358350561 is an equidigital number, since it uses as much as digits as its factorization.

1358350561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54000, while the sum is 37.

The square root of 1358350561 is about 36855.8076970238. The cubic root of 1358350561 is about 1107.4835618973.

The spelling of 1358350561 in words is "one billion, three hundred fifty-eight million, three hundred fifty thousand, five hundred sixty-one".